baber/WOPTO huggingface dataset:
Patent GB-1505401-A (GB)
Title: Combination of an indicating device and a tuning apparatu
IPC: H03J3/14
Filed: 1975-02-19
Abstract: 1505401 Receiver tuning indicators; transistor voltage level detectors; analogue-to-digital conversion SANYO ELECTRIC CO Ltd 19 Feb 1975 [21 Feb 1974 30 May 1974 18 July 1974] 7004/75 Headings H3Q H3T and H3H A tuning apparatus and indicating device therefor has a comparator DRA-DRF, Fig. 5 responsive to a variable tuning control voltage for selectively energizing the one of frequency region indicators A-F, such as LED's, which corresponds with the frequency range to which the apparatus is tuned by the voltage or two adjacent indicators where the ranges overlap (Fig. 8, not shown). A transistor Tr 3  is only biased off between tuning control voltage limits of (V 1 , V 3 , Fig. 6, not shown). This causes a Schmitt circuit transistor Tr 5  to conduct and turn on a LED A to indicate the frequency A tuned to on a display panel (Figs. 2 and 3, not shown). Higher tuning voltages such as obtained from a sweep voltage across a solid state potential memory device (13, Fig. 1, not shown) having a solid state electrolyte RbAg 4 I 5  sandwiched between Ag cathodes MC, AC, and an Ag-Te anode AC are detected by further comparators DRB-DRF and are indicated by LED's B-F. The tuning sweep is started by a switch (11) and stopped by outputs from an amplitude detector (24) and a ratio detector (42) on tuning to a received transmission or channel. In a simplified circuit (Fig. 7, not shown) the differential transistors Tr 1  and Tr 2  and the Schmitt circuit Tr 4 , Tr 5  are omitted and Tr 3  controls a transistor Tr 6  to shunt the associated LED A-F unless that frequency is to be indicated. In a further LED driving circuit (Fig. 9, not shown) as the tuning voltage increase above (VI, Fig. 11, not shown) transistors (Q 1 , Q 3 ) turn on to light a LED A. As the tuning voltage increases to (V2) a further pair of transistors (Q 1 , Q 3 ) turn on to light a further LED B and when the tuning voltage exceeds a voltage (V 3 ) a transistor Q 2  turns on to shunt the base-emitter of (Q 2 ) associated with LED A to turn off that LED. This gives the overlapping frequency range where adjacent LED's are on. At the end of a tuning scan the device 13 is discharged rapidly (t 1 , t 2 , Fig. 10, not shown) and during this period a transistor (Q 4 ) turns off to turn off any of the LED's which was on. In a further LED driving circuit (Figs. 13A and 13B, not shown) a LED A is turned on only if the tuning voltage input is lower than (V 3 , Fig. 14, not shown). A first part (Tr 1 -Tr 5 ) of a comparator circuit DRB turns on a LED B if the input tuning voltage exceeds (V 2 ) and a second part (Tr 11 , Tr 21 , Tr 31  and Tr 41 ) responds to the input tuning voltage exceeding (V 5 ) to turn off the LED B.
Patent GB-1300386-A (GB)
Title: Improvements in dispensers for flowable products
Inventor: GUNN-SMITH RONALD ALFRED
IPC: B65D83/14
Filed: 1969-02-10
Abstract: 1300386 Syringes METAL BOX CO Ltd 1 May 1970 [10 Feb 1969] 7110/69 Heading A5R [Also in Division F1] In a device for dispensing cream or ointment to the body, gas from a propellant container 1 exits through valve 2 to actuate a piston 9 in a product dispensing container 8 such that when the valve is closed, a space behind the piston remote from the product is open to atmosphere through venting means 6, 7, 10. The valve 2 has a hollawstem 3 venting to atmosphere through chamber 5 and aperture 7 of the venting means, the former also communicating with the space behind the piston through a nozzle 6, push fitted into cap 11 which is screwed onto container 8. In operation finger depression of actuator 4 closes aperture 7 so allowing depression of the valve stem and flow of gas to the piston to dispense product through outlet 12, optionally provided with cap 13. In a modification, Fig. 2 (not shown) the product and propellant containers are axially aligned, the latter being slidable on a spring (17) in an extension housing (14), screwed or attached by a bayonet fitting into the product container. Depression of container 1 causes engagement of stem 3 and nozzle 6 so closing a vent (15) to atmosphere around the container sides. Alternatively the containers may be as in Fig. 4 (not shown), a connecting duct (20) extending therebetween, through base member (20) into which the containers are screwed. The product container 8 may be a sterile package. Both containers may be replaced when empty.  Reference has been directed by the Comptroller to Specification 1,207,677.
Patent GB-979445-A (GB)
Title: Hydrostatic transmission
Inventor: DOWTY GEORGE HERBERT
IPC: F16H39/08
Filed: 1962-02-24
Abstract: 979,445. Hydrostatic transmissions. DOWTY TECHNICAL DEVELOPMENT Ltd. Feb. 8, 1963 [Feb. 24, 1962], No. 7309/62. Heading F2C. [Also in Division B7] A vehicle has a hollow structural member 6 between the engine and rear axle casing with two spaced-apart flanges 8, 9 between which the pump 11 and motor 12 of a hydrostatic transmission are housed, the flanges and hollow member 6 together defining a reservoir for transmission liquid. The pump and motor are both of the tilting head type, are mounted on vertical trunnions 17 and 44 and inter-connected by a pair of hollow links 36, 37 which act as supply and return lines for liquid between pump and motor. The pump stroke is controlled by a hand lever through servomotor 47, the pistonrod 48 of which is connected by link 49 to lever 53 of the pump and the motor stroke is controlled by the pump position through links 36, 37. A make-up pump driven from the pump input shaft 13 supplies fluid from the reservoir through line 64 to a cooler and thence through line 67 to the transmission. A sealed tube 84 is provided between the flanges 8, 9 enclosing a power take-off shaft 83.
Patent GB-759201-A (GB)
Title: Improvements relating to radio-controlled model boats or vehicles
Inventor: SOMMERHOFF GERD WALTER CHRISTI
IPC: A63H30/04
Filed: 1954-03-12
Abstract: 759,201. Toy boats and vehicles. LINES BROS., Ltd. March 3, 1955 [March 12, 1954], No. 7316/54. Class 132(3) A radio controlled model boat or vehicle driven by a reversible electric motor is steered by reversal for a short period of the propeller shaft or driving shaft of the boat or vehicle. In Fig. 1, a propeller shaft 14 driven by an electric motor 4 has a pinion 27 fixed on it which, when the shaft revolves in the forward driving direction, Fig. 3, brushes against a segment 28 rotatably-mounted on a control shaft 22 without positively engaging the segment. When the motor and shaft 14 are reversed by a switch controlled by a radio receiver 1, the pinion engages the end tooth of the segment which is turned through approximately 90 degrees, a pawl 26 mounted on the segment turning a ratchet 25 secured to the shaft 22 also through 90 degrees, thus causing a rudder 16 to be rotated from its normal midship position by means of a pin-and-slot connection 24, 21 between the shaft 22 and the rudder post 17. When the propeller shaft resumes its normal direction of rotation the segment is returned to the position shown in Figs. 1, 3 ready to be rotated by the pinion 27 on the next reversal of the propeller shaft. A pawl 36 prevents backward rotation of the ratchet wheel 25-of which each complete rotation, in 90 degree steps, causes the rudder to move successively from midship position to port, back through the midship position to starboard, and then to the midship position again. The duration of the reversal of the propeller shaft, e.g. one or two seconds, does not materially effect the progress of the boat through the water. In the model motor car, Fig. 5, however, a free wheel device 31 is provided in the transmission so that the driving wheels are not stopped when the driving shaft from the electric motor 4 is reversed, the inertia of the vehicle maintaining the forward motion during this short time. The loop 24<SP>1</SP> of the pin-and-slot connection is secured to a steering cross-bar 34 which 'controls arms 35 attached to the front wheels.
Patent GB-586028-A (GB)
Title: Process for the lamination of plastic sheet material
IPC: C09J5/00
Filed: 1944-04-21
Abstract: A polysilicic acid sol for use in an adhesive composition (Group VIII), is prepared in one example by adding dilute hydrochloric acid to a solution of sodium silicate whilst agitating the solutions. Tertiary butyl alcohol is added and sodium chloride to saturate the water present.  The upper layer is decanted and n-butanol added, the solution being then distilled under reduced pressure at 30-50 DEG C. The residue is a partially esterified polysilicic acid, dissolved in n-butanol.  In another example an aqueous solution of sodium silicate is stirred into a 7 per cent. aqueous solution of sulphuric acid and tributyl phosphate and sodium chloride added.  Stirring continues for one hour and the mixture allowed to stand.  The upper layer is separated, centrifuged and dried.  U.S.A. Specifications 2,395,880 and 2,383,653 are referred to as describing methods of preparing polysilicic acid sols.ALSO:A polysilicic acid sol. for use in an adhesive composition (Group VIII) is prepared in one example by adding dilute hydrochloric acid to a solution of sodium silicate whilst agitating the solutions.  Tertiary butyl alcohol is added and sodium chloride to saturate the water present.  The upper layer is decanted and n-butanol added, the solution being then distilled under reduced pressure at 30-50 DEG  C.  The residue is a partially esterified polysilicic acid, dissolved in n-butanol.  In another example, an aqueous solution of sodium silicate is stirred into a 7 per cent aqueous solution of sulphuric acid and tributyl phosphate and sodium chloride added.  Stirring continued for one hour and the mixture allowed to stand.  The upper layer is separated, centrifuged and dried.  U.S.A. Specifications 2,383,653 and 2,395,880 are referred to as describing methods of preparing polysilicic acid sols.
Patent GB-348271-A (GB)
Title: Improvements in or relating to percussion tools
IPC: B25D11/12
Filed: 1930-03-06
Abstract: 348,271. Percussive hand tools. SIEMENS SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. March 6, 1930, No. 7416. Convention in date, March 14, 1929. [Class 124.] In an electro-mechanical hand hammer wherein a slider 16 is reciprocated by means of two connecting-rods 14 from the bevel-driven crank shaft 13 actuated by an electromotor 11, the front part of the casing 17 is made of harder metal thar the light metal of the rear part Removable plates 23 cover the gearing.
Patent GB-468744-A (GB)
Title: Improvements in tapping screws
IPC: F16B25/00
Filed: 1935-10-09
Abstract: 468,744. Screws. CLAYTON, C. E. EVERY-. (Illinois Tool Works) Oct. 9, 1935, No. 7461/37. Divided out of 468,679. [Class 89 (i)] [Also in Group XXII] In a tapping - screw for use in metal, synthetic resin, &c. having threaded holding and hardened tapping portions, the latter being provided with a recess so as to form a cutting edge, the thread on the tapping portion decreases in external diameter and height towards the entering end of the screw but has the same cross - sectional contour as the thread on the holding portion. The screw having a head 1 has a holding portion 2 and a tapping portion 3, and the V-shaped thread 5 on the latter has the same pitch and section as thread 4 on the former, but is made of decreasing height and crosssectional area so as to expose a helical core 6 of gradually increasing width. The recess 7 forming the cutting edge 7a is of the kind described in Specification 468,679, and the screw is to be inserted in a hole having a diameter slightly greater than that of the core 6. The diameter of the core 6 is at least as great as the root diameter of the thread 4.
Patent GB-804977-A (GB)
Title: Improvements in or relating to show cases
Inventor: WEBBER BERTRAM
IPC: A47F3/12
Filed: 1956-03-09
Abstract: 804,977. Cabinets. WEBBER, Ltd., B. June 7, 1957 [March 9, 1956], No. 7494/56. Class 52(1) In a showcase as described in Specification 804,978, in which the front frame is divided into access openings by horizontal rails 2 and each opening is closed by a transparent door 3, the vertical side members 7 of the front frame extend beyond the plane of the frame and the doors are each received along their upper edges in a channel 4 the ends of which are formed as upturned lugs 5 taking over pivots 8 mounted on the inner faces of the side members 7 so that the doors lie flush. The doors may have grooves to receive labels.
Patent GB-1032560-A (GB)
Title: Manufacture of extended surface tubing
Inventor: HARDING BRIAN
IPC: F28F1/36
Filed: 1964-02-22
Abstract: 1,032,560. Coiling helices; making tubes; rolling. HOWELL & CO. Ltd. Feb. 16, 1965 [Feb. 22, 1964], No. 7505/64. Headings B3A, B3E and B3M. A helical fin is applied to a tube 1 by feeding a strip tangentially to the tube between rollers 4 and 7 which are moved axially relative to the tube as the tube is rotated. The roller 4 is rotated by a sleeve 2, driven by a pulley 3, at a slightly slower rate than the tube so that the strip is wound on the tube under tension. The pass between the rollers decreases radially from the tube, the resulting reduction in thickness of the strip at its outer edge causing it to curl onto the tube. The fin is formed with an L- shaped section, the portion parallel to the tube serving to space the turns of the fin. Alternatively, the feed of the rollers determines the fin spacing. The roller 7 is freely mounted in an arm 5 whose pivot point 6 is adjustable parallel to the tube and whose lower end is adjustable parallel to the tube and whose lower end is adjustable by a screw 9. The roller 4 (Fig. 4, not shown), may be provided with radial grooves 10 to produce ribs on one face of the fin. A feeler 13 senses any irregularities in strip fed along a guide 12, and stops the machine or signals an alarm. In a modification (Fig. 5, not shown), the fin remains straight and is formed in a groove produced in the tube surface by a roller 14 immediately following the rollers 4 and 7. A further roller 15 beds the fin in position, the fin then passing between a spacing slot 16 in the roller 14.
Patent GB-1465855-A (GB)
Title: Hair drying appliance
IPC: A45D20/50
Filed: 1974-02-19
Abstract: 1465855 Hair dryers BRISTOL-MYERS CO 19 Feb 1974 [28 Feb 1973] 7506/74 Heading A5R A hand held hair dryer 10 comprises a tubular housing 12 having a cylindrical head 16 and a smaller diameter cylindrical handle 14 joined at a neck 18, air being drawn' into the housing through a first plurality of inlet openings 60 in neck 18 and a second plurality of inlet openings 62 in an end cap 50 by axial fans 64, 66 respectively, the fans being mounted on a common drive shaft 48 and having opposite pitches so that the incoming air streams are forced towards each other and over a heating element 58 carried on mica supports 56 between inlet openings 60, 62, the air being expelled perpendicularly to the axis of housing 12 through an outlet opening 63 comprising a longitudinally extending slot or slots disposed between the inlet openings 60, 62. The drive shaft 48 is driven by an electric motor 36 held within housing 12 by adaptors 32, 34 and. O-rings 38, 40, adaptor 32 having an arcuate periphery to channel air from inlet openings 60 towards outlet opening 63, the. motor being supplied with electrical current from a rectifier 42. Shaft 48 is journalled in bearings 52 and 54 in adaptor 32 and in end cap 50 respectively, and is connected to motor 36 by a flexible coupling 46. An end cap 30 mounted on a cylindrical extension 22 of handle 14 is rotatable to operate a switching circuit 24, which provides various modes of operation of the dryer, which modes are visually indicated by indicia on extension 22 moving into alignment with an indexing mark on end cap 30. A pair of baffles 84 symmetrically formed in head 16 may be provided to aid deflection of the air streams through the outlet opening 63. A brush, comb or nozzle for styling the hair may be mounted in alignment with the opening 63.
Patent GB-466976-A (GB)
Title: Apparatus for the hydrogenation of carbonaceous materials
IPC: C10G47/00
Filed: 1936-03-12
Abstract: <PICT:0466976/III/1> Apparatus for the hydrogenation of liquid carbonaceous materials comprises a pretreatment chamber V filled with stationary catalyst and a reaction chamber or series of chambers T<1>, T<2>, T<3>, the liquid material, preheated in a vessel P, being vaporized at temperatures below the reaction temperature in the vessel V in presence of hydrogen preheated by an ascending circulation round the vessel V and introduced laterally thereinto. The hydrogen is introduced through the pipe H and may be heated by the reaction products in a heat-exchanger.  The vaporized materials pass downwardly through the reaction chambers T and are cooled between each chamber by passage through coils R<1>, R<2>.
Patent GB-343341-A (GB)
IPC: F02M1/00
Filed: 1930-03-10
Abstract: 343,341. Preventing backfiring. FEUILL•E, H., (trading as SOC. DES BOUGIES VENUS), 8, Rue Gabrielle, Gentilly, France. March 10, 1930, No. 7745. Convention date, Dec. 13, 1929. [Classes 7 (ii) and 7 (iii).] A device for arresting back-ignition comprises groups of interlocking metallic plates forming a cellular structure, and is inserted either in the induction pipe between the carburetter and the engine or in the air intake. The plates may be plane, V-shaped as shown in Fig. 7, or perforated. Heating pipes conveying hot oil or water from the engine may be arranged in the angle of the V as shown in Fig. 6 to prevent choking of the apparatus by the formation of frost. The plates of each group are parallel to each other and at right-angles to those of adjacent groups; the plates of alternate groups may be aligned or staggered as shown in Figs. 6 and 7 respectively.
Patent GB-917289-A (GB)
Title: Stop devices for well conduit
Inventor: PARK ROBERT OGILVIE
IPC: E21B17/10
Filed: 1960-03-04
Abstract: 917,289. Wells. BAKER OIL TOOLS Inc March 4, 1960, No. 7797/60. Class 85. A stop collar A for well conduit B comprises a split annular member 20 having arcuately overlapping portions 25, 26 formed with axially extending portions 29, 37 engaged by an actuator 48 which is adapted to spread the portions 29, 37 apart to tighten the collar about the conduit. The actuator is fixed to the member by a strap 50 and is flattened (8ee Fig. 7) to tighten the collar. The collar has rows of opposed teeth 23, 24 adapted to grip the conduit. Tongues 30, 38 on the portions 29, 37 engage grooves in the internal face of the member to ensure that the collar is fixed normal to the axis of the conduit. In a modified collar the member is formed by two parts which hook together. A casing centralizer C (Fig. 1) has stop rings 13, 14 which engage a collar fixed to the conduit to restrict longitudinal movement.
Patent GB-330018-A (GB)
Title: Improvements in moulds for the manufacture of castings from metals or alloys
IPC: B22C9/06
Filed: 1929-03-11
Abstract: 330,018. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 11, 1929. Moulds; mould materials.-Moulds and cores, or parts thereof, are made from porous metal preferably by moulding metal powder under pressure or while heated or both. The powder, free from sulphur, phosphorus, silicon, &c., may be obtained by decomposing metal carbonyls. The chilling effect and porosity may be varied by varying the compression and may differ in different parts of the same mould. The moulds may be used for casting superheated copper or silver, and may be washed or dusted with a bicarbonate, oxalate, borate, &c.
Patent GB-162883-A (GB)
Title: Improvements in and relating to means for operating passenger or freight lifts
IPC: B66B9/02
Filed: 1920-03-18
Abstract: 162,883. Broy, E. March 18, 1920. Screw-and-nut lifts.-In screw lifts, a threaded sleeve 6 mounted in a thrust bearing 7 on the cage is driven through bevel-gearing either by a reversible electric motor 13 or hand wheel 18 and engages a vertical threaded rod 1 mounted in the shaft. The rod 1 is normally prevented from rotating, but means may be provided for rotating the rod, in which case the sleeve 6 is prevented from turning by a key 23.
Patent GB-1103450-A (GB)
Title: Channel supervisory system
IPC: H04J1/14
Filed: 1965-02-24
Abstract: 1,103,450. Pilot controlled transmission systems; data transmission systems. FUJITSU Ltd. 24 Feb., 1965 [2 Feb., 1964], No. 8058/65. Headings H4P and H4R. In a pilot controlled transmission system in which the pilot signal is used for automatic level control and/or for frequency synchronization the pilot signal transmitted comprises a carrier frequency of C cycles per sec. from an oscillator OSC, Fig. 2, which is modulated in a balanced modulator MOD by a frequency of S cycles/sec. to produce sum (C + S) and difference (C - S) frequencies, which frequencies may be selected to lay toward the outer edge of the transmission band. At the receiver the sum and difference signals are selected by filters BF1 and BF2 respectively and fed as two inputs to the demodulator DEM to generate sum and difference frequencies of the transmitted signals (C 3+ S) and (C - S) i.e. 2c and 2s which are selected in respective band pass filters BF4 and BF3. It is shown that the difference frequency 2s is unaffected by a frequency shift in the transmission link and may therefore be used to generate an accurate clock pulse while the sum signal 2c is shown to have twice the amplitude deviation introduced by the transmission path, and is therefore suitable for use in automatic level control circuits ALM, and has a frequency deviation twice that introduced in the transmission path and is therefore suitable for use in automatic frequency correction circuits A.F.C. Conventional circuits are described for the oscillators, modulators, filters, level and frequency discriminators used in the system, Figs. 3 to 7 (not shown). Fig. 8 shows a system for recovering from the received signal a frequency f 1  which has been subjected to a frequency shift α in the transmission. The other inputs used in Fig. 8 are a locally generated stable carrier fp applied to IN2 and the sum signal of the carrier from the filter BF4 of Fig. 2, i.e. (2fp + 2α).